Question

5 multiple choice 1.5 points how might climate change alter the boundaries of biomes over the next 50 years? only tropical biomes will be affected by climate change rising temperatures and a change in precipitation could shift biome boundaries poleward and upward in elevation rising temperatures and altered precipitation could shift biome boundaries towards the equator and down in elevation biome boundaries will remain the same regardless of climate change

Explanation:

Biomes are large ecological areas on the Earth's surface, with flora and fauna (plants and animals) adapting to their environment. Climate change, which includes rising temperatures and changes in precipitation patterns, affects the conditions in which species can survive. As temperatures rise, the areas where certain species can live (and thus the biome boundaries) shift. For example, if a biome requires a certain temperature range, as the planet warms, that temperature range will be found further poleward (towards the poles) and at higher elevations (since temperature generally decreases with elevation). Tropical biomes are not the only ones affected (so the first option is wrong). Biome boundaries do not remain the same (so the fourth option is wrong). Rising temperatures and changed precipitation would not shift boundaries towards the equator (which is warmer) or down in elevation (where it is warmer), but rather in the opposite direction (poleward and upward where it is cooler relatively), so the third option is wrong.

Answer:

Rising temperatures and a change in precipitation could shift biome boundaries poleward and upward in elevation.